: Collecting certain Codex entries or completing related challenges can reward players with Sentinel Crystals to upgrade health, armor, or ammo capacity.
If you are looking for gameplay features related to the Codex system itself: DOOM.Eternal-CODEX.part3.rar
The specific entry for describes the expansion of the Argenta empire using the technology and magic of the Maykrs. A key feature of this lore segment is the reveal of the Argenta's first spaceflight , where they used Maykr "machines and enchantment" to travel across the Empyrean Void to spread the Khan Maykr’s word and eventually discover their many enemies. : Collecting certain Codex entries or completing related
: Accessing the Doom Slayer's in-game computer allows you to unlock full versions of original games; for example, entering the code FLYNNTAGGART unlocks DOOM II . : Accessing the Doom Slayer's in-game computer allows
: Finding physical Codex pages hidden throughout levels increases your total score and provides 100% mission completion.
In , the Codex serves as a mobile database that provides lore and technical details on the game's world.
